JP2598415Y2 - Self-propelled wood splitter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled wood splitter.

[0002]

2. Description of the Related Art In recent years, outdoor activities have become a boom with the rise of nature consciousness , and outdoor accommodation facilities such as auto campsites have been constructed in various places.

[0003] By the way, in the above-mentioned auto campsite and the like,
Firewood is often used for heating for cooking and heating.

[0004] For this reason, in outdoor accommodation facilities such as auto campsites, it is necessary to prepare a large amount of firewood for guests.

[0005] Therefore, conventionally, in an outdoor accommodation facility, an employee manually performs a wood chopping operation using an ax or the like to secure firewood.

[0006]

[Problems to be Solved by the Invention] As described above, if an employee secures a large amount of firewood by hand, the task of splitting the firewood is hard work, which imposes a heavy burden on the employee. there were.

Further, there is a firewood split machine carried out using a hydraulic cylinder or the like wood split, the current firewood split machine, or a fixed type, also those of mobile, be a degree marked with tire ,
In addition, the heavy weight of the wood splitter itself makes it very difficult to move.
There was a problem that the pieces had to be transported to the front of the wood splitter, which was a heavy labor.

[0008]

A self-propelled wood splitter is provided with a self-propelled transport vehicle having an upper portion of a frame provided with a traveling device on both sides as a mounting portion and an engine at a rear end of the frame.

A main frame detachably mounted on a mounting portion of a transport vehicle via a connecting pin, an apparatus body swingably supported at a front end of the main frame, and a swingable rear end of the main frame. An outrigger supported by the main body and an outrigger, and a firewood splitter including a hydraulic cylinder for rotating both the outer side or the inner side of the main frame,

The firewood splitter is constituted by a hydraulic circuit for controlling an elevating cylinder incorporated in the woodcutting machine main body. The woodcutting machine main body is swingably supported by the main frame, and extends outward from the main frame. A column that is in an upright state when rotating, a bottom plate fixed to the lower end of the column and abuts on the ground when the column is upright, an elevating platform that is supported by the column so as to be able to move up and down, and an elevating platform for elevating the elevating platform It is constituted by a cylinder and a cutting blade integrated into a bottom plate or a lifting table,

A hydraulic circuit for controlling the lift cylinder is
Interposed between the hydraulic pump and the lifting cylinder of the wood splitter,
A three-position switching valve for extending or shortening the elevating cylinder, and interposed between the elevating cylinder and the three-position switching valve. In a normal state, the elevating cylinder and the three-position switching valve are directly communicated with each other. And a pilot-type two-position switching valve that switches the return oil from the lifting cylinder as pilot pressure when extended under no load, and supplies a part of the return oil from the lifting cylinder to the lifting cylinder again. is there.

[0012]

[Action] and cart, and firewood split machine having a main frame that is detachably mounted on the carrier vehicle, a lifting platform which is pressed against the cutting blade of firewood split machine wood piece, lifting Siri for lifting the lifting table
And the hydraulic circuit that controls the lift cylinder.
By configuring a self-propelled wood splitter,
Efforts can be reduced by replacing labor with hydraulic mechanical power,
Firewood can be easily prepared, and where
Can be easily moved .

[0013]

1 to 4 show a self-propelled wood splitter according to the present invention.
The self-propelled wood splitter (1) is shown in FIG. 3 and the self-propelled carrier (2) shown in FIG. 3 is integrated with the carrier (2) in FIG. It consists of a wood splitter (3).

In the above-mentioned transport vehicle (2), a frame (6) provided with a traveling device (5) such as a crawler belt or a multi-row wheel on both sides is used as a mounting portion (7) of a wood splitter, and the frame (6) ) The engine and the operating section (8) are provided on the rear end side.

[0015] The driving force from the engine is transmitted to the front wheels (9) via the transmission, and the front wheels (9) are rotated forward or backward, so that the transport vehicle (2) runs.

A recess (10) which engages with a connecting pin (21) provided at the lower part of the front end of the main frame (15) of the wood splitter (3) is provided at the front end of the frame (6) of the carrier (2). A pin hole (12) corresponding to the pin hole (22) of the wood splitter (3) is fixed above the mounting portion (7) behind the frame (6). It is provided.

A wood splitter (3) integrated with the transporter (2)
A main frame (15), an apparatus main body (17) swingably supported in front of the main frame (15) via a first swing arm (16), and a main frame (15). An outrigger (19) supported at an end via a second swing arm (18);
The main component is a hydraulic cylinder (20) interposed between the first swing arm (16) and the second swing arm (18).

Below the front end of the main frame (15),
Connecting pin that engages with the recess (10) of the hook (11) of the transport vehicle (2)
(21) is fixed, and the rear end has a pin hole (12) provided at the rear of the frame (7) of the carrier (2).
A bracket (23) having (22) is fixedly provided.

The first and second swing arms (16) and (18)
Are pivotable about the pins (16a) and (18a), respectively.The inner ends of the upper portions are connected to the rod-side and body-side ends of the hydraulic cylinder (20), and the hydraulic cylinder ( Two
0), the first and second swing arms (16) and (18)
Is rotated toward the inside of the main frame (15), and when the hydraulic cylinder (20) is shortened, the first and second swing arms (16) and (18) move outward. It is designed to rotate.

The apparatus main body (17) supported by the first swing arm (16) has pins (30) and (31) on its side at the lower outer end of the first swing arm (16). A support frame (32) that is connected and fixed through the support frame (32), and a column (3
3) and an elevating platform that is supported by the column (33) so that it can move up and down.
(34), a cutting blade (34a) integrated with the lifting platform (34), and a cutting blade with the main body side supported by the upper end of the column (33) and the tip of the rod integrated with the lifting platform (34) (34a) and a bottom plate (36) fixed to the lower end of the column (33).

The outrigger (19) supported by the second swing arm (18) has a rear end at the second swing arm (1).
8) a support leg (40) fixed to the lower outer end, and a support leg (40)
And a ground plate (41) fixed to the end of the base plate.

A transporter (2) comprising the above-mentioned components and a wood splitter
(3) was initially separated as shown in FIGS.
In state. The wood splitter (3) shown in FIG.
(20) is in an extended state, and in this state, the device
Lower surface of bottom plate (36) of body (17) and outrigger
The lower surface of the ground plate (41) of (19) is
So that the columns (3)
3) Standing upright and stable against the ground with independent support
So that, for example, a stopper (not shown)
Each operating end is regulated. This allows the hydraulic system
When the Linda (20) is extended, the light load side
When it operates and reaches its operating end, the other operates and
And the state shown in FIG. 4 is reached .

In order to form the self-propelled wood splitter (1) by integrating the transporter (2) and the wood splitter (3) having the above configuration, the wood splitter in the self-standing state shown in FIG. The two parts are positioned so that the mounting part (7) of the transport vehicle (2) is located directly below the machine (3).

Next, the hydraulic cylinder (2) of the wood splitter (3)
0) and the Ru is shortened, strike outrigger (19) is ahead
Up to the rising end regulated by the hopper (not shown) (second
Pivoting the swing arm (18) to the outer end), and then
The device body (17) is regulated by a stopper (not shown).
(The first swing arm (16) is moved outward
(Rotation to the side end). The operation process at this time is out
When the rigger (19) starts to rise, the wood splitter (3)
The frame (15) supports the rear end of the lower surface of the bottom plate (36) as a fulcrum.
And the bottom of the rear end is the frame of the transport vehicle (2)
Abuts on the upper surface of the rear end of the
-(19) rises to the rising end. Next, the device body
(17) started to rise and the main frame of the wood splitter (3)
(15) is completely on the frame (6) of the truck (2).
After that, the device body (17) is
(Not shown) to rotate upward to the upper end regulated. this
Finally, the whole wood splitter (3) is lowered,
The main frame (15) of the machine (3) is mounted on the carrier (2).
It can be mounted on the mounting portion (7) (the state shown in FIG. 2).
).

Then, as shown in FIG. 2, the connecting pin (21) provided at the lower part of the front end of the main frame (15) of the wood splitter (3) is inserted into the recess of the hook (11) at the end of the frame of the carrier (2). (10), and a pin hole (22) provided on the bracket (23) at the rear end of the main frame (15) of the wood splitter (3) and a pin hole provided on the rear of the frame of the carrier (2). By making (12) coincide with each other and inserting the connecting pin (42) between them, the wood splitter (3) and the transport vehicle (2) are integrated.

As described above, the wood splitter (3) and the transporter (2)
If it is integrated, the wood splitter (3) can be supported movably.

At the time of the wood splitting operation , the oil in the state shown in FIG.
When the pressure cylinder (20) is extended, first, the outrigger
ー (19) moves to the lowering end and the ground plate (41)
Then, the device body (17) moves to the lowering end.
The bottom plate (36) is grounded, the support (33) stands upright,
The state shown in FIG. 1 is obtained. At this time, the hydraulic cylinder (2
0), the rear end of the lower surface of the bottom plate (36) is strong against the ground.
Become bite, ground plate of outrigger (19)
(41) while pulling (2) forward while loading
The column (33) of the placing body (17) is erected. This
In parallel, the transport vehicle (2) is lifted slightly from the ground.
It is.

At this time, since the wood splitter (3) and the carrier (2) are integrated by the connecting pins (21) and (42), when the wood splitter (3) becomes independent, the transporter (2) Will be lifted slightly above the ground.

Then, in this state, the cutting blade (3) integrated with the bottom plate (36) of the wood splitter (3) and the lifting table (34).
After positioning wood piece (K) between 4a) is extended a lifting cylinder (35) lowers the cutting blade (34a),
Cutting blade and (34a) performs the wood split by pressing a tree piece (K).

Further, a transporter (2) integrated with the wood splitter (3)
If it is desired to use it for another purpose, in the state shown in FIG. 2, connect the connecting pin (42) to the pin hole of the wood splitter (3) and the transport vehicle (2).
(22) Withdraw from (12), in this state, shorten the hydraulic cylinder (20) of the wood splitter (3), and make the wood splitter (3) stand alone.

Then, the wood splitter (3) and the transporter (2) are connected by connecting pins.
Since (42) has been extracted and already separated,
At the time of (3) independence, the main frame (15) of the wood splitter (3) moves away from the mounting part (7) of the truck (2), so the truck (2) is moved to the wood splitter.
It can be separated from (3) and the carrier (2) can be used for other purposes.

FIG. 5 is a perspective view of the elevator (3) of the wood splitter (3).
Up to 4) and the integrated cutting blade (34a) is in contact with the wood piece (K) is to extend the lift cylinder (35) at high speed,
After contact by extending at a normal speed, but showing a hydraulic circuit of Fig order to further speed-up of wood split working.

In the figure, (35) is an elevating cylinder of the wood splitter (3), and (34a) is integrated with an elevating table (34) connected to a piston rod of the elevating cylinder (35). Cutting blade, (50)
Is a hydraulic pump, and (51) is an oil tank.

(52) The lifting cylinder (35) and the hydraulic pump (5)
0), and the three-position switching valve (52) is operated to operate the lifting cylinder (35)
, Three types of operations, that is, stop, extend, and shorten, are performed.

(53) is a lifting cylinder (35) and a three-position switching valve
(52) is a pilot type two-position switching valve interposed therebetween.

In a normal state, the pilot type two-position switching valve (53) has a port (a) of the three-position switching valve (52), a port (b) on the cylinder side of the lifting / lowering cylinder (35), and a three-position switching valve. The port (c) of the switching valve (52) and the port (d) on the rod side of the elevating cylinder (35) are directly connected, and the port (c) of the three-position switching valve (35) is connected to the rod of the elevating cylinder (35). When a predetermined oil pressure is applied to a bypass passage (56) having a check valve (55) interposed in a hydraulic passage (54) communicating with the port (d) on the side, the elastic force of the spring (57) 2 position switching valve (5
3) is switched to the bypass side (53a).

The switching condition is that the check valve (55) is opened and the pilot valve (55) is opened when the elevating cylinder (35) is extended with no load and the flow rate in the hydraulic flow path (54) is maximized. The expression 2 position switching valve (53) is switched.

When the pilot type two-position switching valve (53) is switched to the bypass side (53a), a part of the oil flowing in the hydraulic flow path (54) becomes part of the pilot type two-position switching valve (53). It flows into the cylinder side of the elevating cylinder (35) through the orifice (58) and the check valve (59) so that the cylinder can be extended at a high speed.

In the above construction, the lifting cylinder (35)
There is in reducing state, wood piece (K) is placed between the bottom plate (36) cutting blade of the cutting blade (34a) is firewood split device located upper end (3) (34a), the lifting cylinder (35) is extended to be cutting edge (34a) of the wood piece (K) is pressed against the, when performing wood split, until the cutting edge (34a) contacts the wood piece (K), the lifting cylinder (35) Is extended without load. During this time, the pilot type two-position switching valve (5
3) Since the switching to the bypass side (53a), the lifting cylinder (35) is extended at a high speed, the cutting edge of the (34a) in a short time can be in contact with the wood piece (K).

Further, the cutting edge (34a) contacts the wood piece (K), the lifting cylinder (35) will be extended in a state in which load is applied, the flow rate of the oil flowing through the hydraulic passage (54) The pilot-operated two-position switching valve (5
3) returns to the original state, and the raising and lowering cylinder (35) is extended at a normal speed to perform the chopping operation.

A control box (60) for controlling the hydraulic circuit is usually provided with a carrier as shown in FIGS.
Although the control box (60) is installed near the operation unit (8) of (2), the control box (60) is movably attached to the transport vehicle (2). ) And FIG.
As shown by the one-dot chain line, the worker is able to efficiently perform the wood splitting operation by himself by moving the wood splitter (3) to the vicinity of the device body (17).

In the above embodiment, the cutting blade (34a) is moved up and down
Although the example in which the cutting blade (34a) is moved up and down while being integrated with (34) has been described, the cutting blade (34a) may be fixed to the bottom plate (36) side.

[0043]

As has been described above devised], lifting the present invention includes a truck, a firewood split machine having a main frame that is detachably mounted on the carrier vehicle, the cutting blades of the wood split device is pressed against the wood piece Table , lifting cylinder for lifting the lifting table, and lifting cylinder
Since configured firewood split machine propelled by a hydraulic circuit for controlling the Da and the lifting by the lifting cylinder, wood cutting blades
It becomes possible to make the wood splitter having a lifting platform that is pressed against the piece movable.

Therefore, after the firewood splitter is driven by itself at the work site where the wood splitting operation is performed, the wood splitting operation can be performed on the spot, and the wood splitting operation is performed by hydraulically operated lifting and lowering. to lift the cylinder, a cutting blade for enabling the elevating platform to be pressed against the wood pieces, it is possible to greatly reduce the effort firewood split working.

Further, the lifting cylinder of firewood split machine, to extend at a high speed until the lifting platform in a tree piece the wood by the action of the hydraulic circuit are in contact, it can be carried out very fast firewood split operations, higher speed of firewood split work is Fig.

Further, according to the present invention, since the transporter and the wood splitter can be separated, the transporter can be used for other purposes.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a self-propelled wood splitter operates.

FIG. 2 is a side view showing a state in which the self-propelled wood splitter travels.

FIG. 3 is a side view showing the transport vehicle.

FIG. 4 is a side view showing a wood splitter.

FIG. 5 is a block diagram showing a hydraulic circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-propelled wood splitter 2 Transporter 3 Wood splitter 5 Traveling device 6 Frame 7 Mounting part 15 Main frame 17 Main unit 19 Outrigger 20 Hydraulic cylinder 21 Connecting pin 33 Support post 34 Lifting table 34a Cutting blade 35 Lifting cylinder 36 Bottom plate 42 Connecting pin 50 Hydraulic pump 52 3-position switching valve 53 Pilot type 2 position switching valve

Claims (2)

(57) [Scope of request for utility model registration] 1. A self-propelled transport vehicle having an upper portion of a frame having traveling devices on both sides as a mounting portion, and an engine at a rear end side of the frame, and being detachably attached to a mounting portion of the transport vehicle via a connecting pin. A main frame that is freely mounted, an apparatus body that is swingably supported at a front end of the main frame, an outrigger that is swingably supported at a rear end of the main frame, and A wood splitter interposed and provided with a hydraulic cylinder for rotating the two toward the outside or the inside of the main frame, and a hydraulic pressure for controlling an elevating cylinder incorporated in the main body of the wood splitter A circuit, wherein the apparatus main body of the wood splitter is swingably supported by the main frame, and is upright when pivoted to the outside of the main frame; and a support is fixedly provided at a lower end of the support. When standing upright, touches the ground A self-propelled type comprising a bottom plate, a lifting platform supported on a column so as to be able to move up and down, a lifting cylinder for raising and lowering the lifting platform, and a cutting blade integrated into the bottom plate or the lifting platform. Wood splitter 2. A hydraulic circuit for controlling an elevating cylinder incorporated in an apparatus main body of a self-propelled wood splitter is provided between a hydraulic pump and an elevating cylinder of the wood splitter to extend the elevating cylinder. Or a three-position switching valve for shortening,
It is interposed between the lifting cylinder and the three-position switching valve. Under normal conditions, the lifting cylinder and the three-position switching valve are in direct communication with each other. When the lifting cylinder is extended under no load, the return oil from the lifting cylinder is piloted. The self-propelled wood splitter according to claim 1, characterized in that the self-propelled wood splitter is configured by a pilot type two-position switching valve that switches as pressure and supplies a part of return oil from the lifting cylinder to the lifting cylinder again.